Methods Needle electromyography(EMG),repetitive nerve stimulation (RNS) and activation repetitive nerve stimulation(ARNS) have been performed to study abnormalities of the muscles and neuromuscular transmission in 47 patients with myasthenia gravis.

• 方法应用针极肌电图（EMG），重复神经电刺激（RNS）和激发重复神经电刺激（ARNS）方法，对47例MG患者的肌肉和神经肌肉传递功能进行研究。